Answer:
The coefficient of the 2nd term of trinomial is 18.
Step-by-step explanation:
You can expand in a faster way by using the formula, (a+b)² = a²+2ab+b² :
(3x+3)² = (3x)² + 2(3x)(3) + 3²
= 9a² + 18a + 9
OR
You can expand it by doing step by step :
(3x+3)² = (3x+3)(3x+3)
= 3x(3x) + 3x(3) + 3(3x) + 3(3)
= 9x² + 9x + 9x + 9
= 9x² + 18x + 9
See Quadratic Formula and Determinant's/Delta's formula
If it has 3 sides then it's a triangle.
Using the formula
where
and a=5 b=5 c=8
∴
Answer:
From Larry's rate, the equation can be given as D = T/101010
Step-by-step explanation:
Larry's book has 400400400 pages
His reading rate is 101010 pages per day
Let D = Number of days to read the book
To get the number of days it takes fro Larry to read this book, we say
Total pages = Reading rate (pages/day) x Number of days
Let Total pages = T
and Reading rate = R
Hence;
D = T / R
From Larry's rate, the equation can be given as D = T/101010.
From the question,
ddd = 400400400 (pages) / 101010 (pages/day) = 3963.9 days
Hence, it takes Larry approximately 3964 days to read the book.
